72732765 has 32 divisors (see below), whose sum is σ = 133320960. Its totient is φ = 33168384.

The previous prime is 72732731. The next prime is 72732767. The reversal of 72732765 is 56723727.

It is not a de Polignac number, because 72732765 - 2⁶ = 72732701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72732767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73957 + ... + 74933.

It is an arithmetic number, because the mean of its divisors is an integer number (4166280).

Almost surely, 2^72732765 is an apocalyptic number.

It is an amenable number.

72732765 is a deficient number, since it is larger than the sum of its proper divisors (60588195).

72732765 is a wasteful number, since it uses less digits than its factorization.

72732765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701.

The product of its digits is 123480, while the sum is 39.

The square root of 72732765 is about 8528.3506611771. The cubic root of 72732765 is about 417.4233117179.

The spelling of 72732765 in words is "seventy-two million, seven hundred thirty-two thousand, seven hundred sixty-five".